Dear Dinesh ji, Thanks for your swift response. It is not about a higher or lower designation, but an altogether different name. In the advertisement, the employer posted "Spoken English Trainer" required without an explicit job description. The employer then gave an offer letter on plain paper mentioning the designation as "Changemaker," again without any explicit job description, but just mentioning the salary and the amount to be received as an incentive against achieving the target number of students to be trained.
After the induction program with great follow-up, the employee received an Appointment Letter in which the job description is detailed, more than what had been proposed at the time of the advertisement, during the interview, and also during induction.
Also, in the Appointment Letter, working hours are mentioned as 6 hours on a working day by taking 2*3hrs training sessions. In reality, the Changemaker has to identify colleges, convince the Principal to conduct training, enter data of student participants if the Principal approves the training, and then conduct training. This is basically a combination of 3 roles (mobilizer, data entry operator, and trainer).
Now, please clarify whether it is legally acceptable or not. Thank you in advance.